Contradiction with Numbers 9:1-2
Numbers 9:1-2 mentions the Israelites observing Passover in the first month of the second year, suggesting they were still in Sinai, seemingly conflicting with the timeline of Exodus 40:17 which states the Tabernacle was erected on the first day of the first month of the second year.
Numbers 9:1-2: And the LORD spake unto Moses in the wilderness of Sinai, in the first month of the second year after they were come out of the land of Egypt, saying,
Contradiction with Numbers 33:38
Numbers 33:38 states that Aaron died on the first day of the fifth month in the fortieth year after leaving Egypt, indicating a progression of time that may not coherently align with the timeline of setting up the Tabernacle as described in Exodus 40:17 if not taken in context.
Numbers 33:38: And Aaron the priest went up into mount Hor at the commandment of the LORD, and died there, in the fortieth year after the children of Israel were come out of the land of Egypt, in the first [day] of the fifth month.